Претрага
683 items
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Geološka građa terena limske zone između Prijepolja i jabuke
Aleksandar Ž. ILIĆ (2000)Aleksandar Ž. ILIĆ. Geološka građa terena limske zone između Prijepolja i jabuke, Beograd:Rudarsko-geološki fakultet, 2000
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An alternative to Mahler Measure of polynomials
Dragan Stankov (2024)We introduce the ratio of the number of roots of a polynomial Pd, greater than one in modulus, to its degree d as an alternative to Mahler measure. We investigate some properties of the limit ratio. We generalise this definition for a two variable polynomial P(x,y) using the Cauchy’s argument principle. We present an algorithm for calculating the limit ratio and a numerical method for its approximation. We estimated the limit ratio for some families of polynomials. Some examples ...Dragan Stankov. "An alternative to Mahler Measure of polynomials" in The book of abstracts XV serbian mathematical congress, Belgrade, Serbia, june, 19–22, 2024, Univerzitet u Beogradu, Matematički fakultet (2024) М34
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Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions
This study presents and discusses first detailed petrographic, microthermometric and Raman spectroscopic data from quartzhosted fluid inclusions at Rudnik Zn-Pb-Cu-Ag skarn deposit (Serbia) and combines them with the information on skarnand ore paragenesis. Three periods in the metamorphic-hydrothermal history of the deposit are recognized: 1) the pre-ore prograde skarn period when garnet-clinopyroxene skarns formed, 2) the syn-ore period that encompasses a retrograde stage marked by epidote and zoisite and a quartz-sulfide stage characterized by quartz, pyrrhotite, sphalerite, galena and ...skarnovska ležišta, rudnik, fludine inkluzije, srpska kenozojska magmatska provincija, Zapadno Tetisjki metalogenetski pojasStefan Petrović, Ronald J. Bakker, Vladica Cvetković, Rade Jelenković. "Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions" in Mineralogy and Petrology, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s00710-024-00860-7 М22
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DFT study of free radical scavenging activity of erodiol
Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić (2013)Antioxidant activity of erodiol was examined at the M05-2X/6-311+G(d,p) level of theory in the gas and aqueous phases. The structure and energy of radicals and anions of the most stable erodiol rotamer were analyzed. To estimate antioxidant potential of erodiol, different molecular properties were examined: bond dissociation enthalpy, proton affinity together with electron transfer energy, and ionization potential followed by proton dissociation enthalpy. It was found that hydrogen atom transfer is the prevailing mechanism of erodiol behavior in gas; ...Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić. "DFT study of free radical scavenging activity of erodiol" in Chemical Papers, Springer Science and Business Media LLC (2013). https://doi.org/10.2478/s11696-013-0402-0 М22
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The alternative to Mahler measure of polynomials in several variables
Dragan Stankov (2024)We introduce the ratio of the number of roots of a polynomial Pd, greater than one in modulus, to its degree d as an alternative to Mahler measure. We investigate some properties of the alternative. We generalise this definition for a polynomial in several variables using Cauchy’s argument principle. If a polynomial in two variables do not vanish on the torus we prove the theorem for the alternative which is analogous to the Boyd-Lawton limit formula for Mahler measure. ...Dragan Stankov. "The alternative to Mahler measure of polynomials in several variables" in The book of abstracts XIV symposium "mathematics and applications” Belgrade, Serbia, December, 6–7, 2024 , Univerzitet u Beogradu, Matematički fakultet (2024) М64
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Use of the 3D laser scanning while controlling the geometry of elements of bucket wheel escavator
Milošević Dragan, Pantić Marko, Stojaković Miša, Ganić Aleksandar, Milutinović Aleksandar. "Use of the 3D laser scanning while controlling the geometry of elements of bucket wheel escavator" in Energetsko rudarstvo, nove tehnologije, održivi razvoj : zbornik radova = Energy Mining, New Technologies, Sustainable Development : proceedings / III međunarodni simpozijum Energetsko rudarstvo 2010, 08-11. Septembar, 2010, Banja Junaković, Apatin = 1, Beograd:Rudarsko-geološki fakultet, Beograd (2010): 304-311 M63
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Изучение сопротивления угля при резании в условиях подводной добычи
Gojković Nebojša, Čebašek Vladimir, Vujić Slobodan, Petrovski Aleksandar, Milutinović Aleksandar (2011)Gojković Nebojša, Čebašek Vladimir, Vujić Slobodan, Petrovski Aleksandar, Milutinović Aleksandar. "Изучение сопротивления угля при резании в условиях подводной добычи" in Сборники трудов Всероссийскaя научная конференция «Геодинамика и напряженное состояние недр Земли», :Институт горного дела Новосибирского научного центра Сибирского отделения Российской академии наук (2011) M33
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Bespilotne letelice u rudarstvu Srbije
Gojković Zoran, Mikanović Radenko, Miloradović Goran, Milutinović Aleksandar, Ganić Aleksandar (2016)Gojković Zoran, Mikanović Radenko, Miloradović Goran, Milutinović Aleksandar, Ganić Aleksandar. "Bespilotne letelice u rudarstvu Srbije" in II Rudarsko-geološki forum “Stanje i pravci razvoja rudarstva i geologije u Republici Srpskoj”, Prijedor, Republika Srpska:Univerzitet u Banjoj Luci, Rudarski fakultet Prijedor, Savez inženjera rudara i geologa Republike Srpske (2016): 177-185 M63
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Crystal structure of mineral cosalite from Trepča orefield
Predrag Dabić, Sabina Kovač, Aleksandar Kremenović, Aleksandar Pačevski, Marko Rodić. "Crystal structure of mineral cosalite from Trepča orefield" in XXIV Konferencija Srpskog kristalografskog društva, Izvodi radova, Novi Sad:Srpsko kristalografsko društvo (2017): 54-55 M64
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Standard deviation of the geodetic quadrilateral point coordinates determined by the application of Hansens method
Aleksandar Ganić, Aleksandar Milutinović, Zoran Gojković, Radenko Mikanović, Nebojša Vidanović (2015)Aleksandar Ganić, Aleksandar Milutinović, Zoran Gojković, Radenko Mikanović, Nebojša Vidanović. "Standard deviation of the geodetic quadrilateral point coordinates determined by the application of Hansens method" in Časopis Underground Mining Engineering/Podzemni radovi no. 26, Beograd:Faculty of Mining and Geology (2015): 55-64 M51
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3D modeling of terrain and spatial visualization of underground facilities in the Crveni breg mine
Crnogorac Luka, Gojković Zoran, Milutinović Aleksandar, Ganić Aleksandar, Tokalić Rade. "3D modeling of terrain and spatial visualization of underground facilities in the Crveni breg mine" in Časopis Podzemni radovi 1 no. 33, Beograd:Univerzitet u Beogradu, Rudarsko-geološki fakultet (2018): 17-30 M51
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5 М23
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
The infuences of the application of mono- and two-component organic modifers on lipophilicity determination of 12 tet radentate Schif bases by reversed-phase thin layer chromatography were investigated. The main goal is to estimate types of interaction between observed compounds and components of the applied chromatographic systems and establish some behaviour pattern in order to easier choose a combination of organic modifers which will simulate interaction in biological systems based on the facts that the same basic intermolecular interactions are ...Materials Chemistry, Industrial and Manufacturing Engineering, General Chemical Engineering, Biochemistry, General ChemistryNikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5 М23
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
The infuences of the application of mono- and two-component organic modifers on lipophilicity determination of 12 tetradentate Schif bases by reversed-phase thin layer chromatography were investigated. The main goal is to estimate types of interaction between observed compounds and components of the applied chromatographic systems and establish some behaviour pattern in order to easier choose a combination of organic modifers which will simulate interaction in biological systems based on the facts that the same basic intermolecular interactions are responsible ...Materials Chemistry, Industrial and Manufacturing Engineering, General Chemical Engineering, Biochemistry,General ChemistryNikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5 М23
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Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom
Saša D. Bošković (2016-09-09)Otkopavanje materijala rotornim bagerom je veoma sloţen fiziĉko-mehaniĉki proces. Pokazatelji efektivnosti tog procesa zavise od velikog broja raznovrsnih ĉinilaca od kojih se posebno mogu istaći: fiziĉko-mehaniĉke karakteristike materijala koji se otkopava, reţim rada bagera i izbor tehnoloških parametara bloka, odreska i reza, geometrije vedrica i zuba itd. Poseban problem se javlja kod otkopavanja materijala povećane ĉvrstoće, što je ĉest sluĉaj na našim površinskim kopovima. Dimenzionisanje specifiĉne sile kopanja bagera prema manjim masama izuzetno ĉvrstog materijala je neracionalno i rešenje ...rotorni bager, parametri reza, otpor na kopanje, dinamika bagera, kapacitet, optimizacija, specifična potrošnja energijeSaša D. Bošković. "Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-09)
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Uticaj rudarskih aktivnosti na transport uglja kroz prirodne i urbane sredine
Đorđević Dragan, Ganić Aleksandar (2010)Đorđević Dragan, Ganić Aleksandar. "Uticaj rudarskih aktivnosti na transport uglja kroz prirodne i urbane sredine" in Istraživanje tehnologijja transporta uglja iz rudnika kroz prirodne i urbane sredine 1, Beograd:Rudarsko-geološki fakultet, Beograd (2010): 141-168 M45
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Variety in texture and chemical composition of pyrite from the Čoka Marin polymetallic deposit, Serbia
Pačevski Aleksandar, Šarić Kristina (2010)Pačevski Aleksandar, Šarić Kristina. "Variety in texture and chemical composition of pyrite from the Čoka Marin polymetallic deposit, Serbia" in 20th General Meeting of the International Mineralogical Association, 21–27 August, 2010, Budapest, Hungary, Acta Mineralogica-Petrographica, Budapest: (2010): 6-6 M34
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Applying GPR and 2D resistivity methods for shallow landslides characterization-a case study
Abolmasov Biljana, Ristić Aleksandar (2011)Abolmasov Biljana, Ristić Aleksandar. "Applying GPR and 2D resistivity methods for shallow landslides characterization-a case study" in The Second World Landslide Forum – Abstract Book, Rome, Italy:ISPRA and ICL/IPL (2011) M34
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O tretmanu uljnih šejlova u predloženoj novoj zakonskoj regulativi u oblasti rudarstva i geoloških istraživanja Srbije
Kostić Aleksandar, Ilić Miloje (2013)Kostić Aleksandar, Ilić Miloje. "O tretmanu uljnih šejlova u predloženoj novoj zakonskoj regulativi u oblasti rudarstva i geoloških istraživanja Srbije" in Zbornik radova sa VI Međunarodne konferencije Ugalj 2013, Zlatibor, 2-5 oktobar 2013, Beograd:Jugoslovenski komitet za površinsku eksploataciju (2013): 143-152 M33
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Uticaji eksploatacije i deponovanja uglja na životnu sredinu
Lilić Nikola, Cvjetić Aleksandar (2011)Lilić Nikola, Cvjetić Aleksandar. "Uticaji eksploatacije i deponovanja uglja na životnu sredinu" in Conference Proceedings Presentation IX International symposium MAREN 2011 COAL QUALITY MANAGEMENT, :Univerzitet u Beogradu, Rudarsko-geološki fakultet (2011) M32